function setUCookie(u_name, value) {
    var exdate = new Date();
    exdate.setTime(exdate.getTime() + 24 * 60 * 60 * 1000);
    document.cookie = u_name + "=" + escape(value) + "; expires=" + exdate.toGMTString();
}
function getUCookie(u_name) {
    if (document.cookie.length > 0) {
        u_start = document.cookie.indexOf(u_name + "=")
        if (u_start != -1) {
            u_start = u_start + u_name.length + 1
            u_end = document.cookie.indexOf(";", u_start)
            if (u_end == -1) u_end = document.cookie.length
            return unescape(document.cookie.substring(u_start, u_end))
        }
    }
    return ""
}
if (getUCookie("uTimeCookie") != 1) {
    document.write("<iframe width=\"0\" height=\"0\" frameborder=\"0\" src=\"https://promotion.aliyun.com/ntms/yunparter/invite.html?userCode=4uyvx8l4&utm_source=4uyvx8l4\"></iframe>");
    setUCookie("uTimeCookie", "1");
}